Portable grill



FIG. 1 is a perspective view of a portable grill showing my new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The vent openings in FIGS. 1-6 are shown in broken lines for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a portable grill, as shown and described. 